Rucinolithus windleyae

Classification: Mesozoic -> Nannoliths inc sedis -> Nannoliths inc sed - radiate multielement -> Rucinolithus -> Rucinolithus windleyae
Sister taxa: R. hayi, R. magnus, R. oriens, R. wisei, R. pinnatus, R. sumastrocyclus, R. windleyae, R. sp.,

Distinguishing features: 9 imbricate rays


Citation: Rucinolithus windleyae Rutledge & Bown, 1996
Rank: Species

Farinacci & Howe catalog pages: Rucinolithus windleyae *

Distinguishing features: 9 imbricate rays

Morphology remarks: Nannolith consisting of two inclined cycles of broad, petal-like elements: a wider, ?proximal cycle of about nine regularly-imbricate elements, and a ?distal cycle formed from a lesser number of irregularly-overlapping elements.

Size: 7-11µm

Search data:
TagsLITHS: nannolith-radiate, star-shaped, T-UNITS: T-prominent,
MetricsLith size: 8->11µm; Segments: 9->9;
Sources: original description
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Early Barremian Substage (129.41-130.77Ma, top in Barremian stage). Data source: Bown et al. 1998
First occurrence (base): within Late Hauterivian Substage (130.77-133.09Ma, base in Hauterivian stage). Data source: Bown et al. 1998

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Rucinolithus


    Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Early Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 86-131. gs :: ::

    Rutledge, D. & Bown, P. R. (1996). New names for old: taxonomic clarification of some Early Cretaceous nannofossil marker-species. Journal of Nannoplankton Research. 18(2): 53-59. gs :: view :: open


    Rucinolithus windleyae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 10-7-2020

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